EP0224760B1 - Procédé de fabrication de draps-housses ou enveloppes similaires - Google Patents

Procédé de fabrication de draps-housses ou enveloppes similaires Download PDF

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Publication number
EP0224760B1
EP0224760B1 EP86115599A EP86115599A EP0224760B1 EP 0224760 B1 EP0224760 B1 EP 0224760B1 EP 86115599 A EP86115599 A EP 86115599A EP 86115599 A EP86115599 A EP 86115599A EP 0224760 B1 EP0224760 B1 EP 0224760B1
Authority
EP
European Patent Office
Prior art keywords
cloth
piece
edges
continuous material
elastic tapes
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
EP86115599A
Other languages
German (de)
English (en)
Other versions
EP0224760A1 (fr
Inventor
Joe Bierbaum
Siegfried Henze
Karl Müssig
Hans Ziegler
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Texpa Arbter Maschinenbau GmbH
Original Assignee
Texpa Arbter Maschinenbau GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE3542445A external-priority patent/DE3542445C1/de
Application filed by Texpa Arbter Maschinenbau GmbH filed Critical Texpa Arbter Maschinenbau GmbH
Publication of EP0224760A1 publication Critical patent/EP0224760A1/fr
Application granted granted Critical
Publication of EP0224760B1 publication Critical patent/EP0224760B1/fr
Expired legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B25/00—Sewing units consisting of combinations of several sewing machines
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47G—HOUSEHOLD OR TABLE EQUIPMENT
    • A47G9/00—Bed-covers; Counterpanes; Travelling rugs; Sleeping rugs; Sleeping bags; Pillows
    • A47G9/02—Bed linen; Blankets; Counterpanes
    • A47G9/0238—Bed linen
    • A47G9/0246—Fitted sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/30—Orientation, displacement, position of the handled material
    • B65H2301/34—Modifying, selecting, changing direction of displacement
    • B65H2301/341—Modifying, selecting, changing direction of displacement without change of plane of displacement
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05D—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES D05B AND D05C, RELATING TO SEWING, EMBROIDERING AND TUFTING
    • D05D2305/00—Operations on the work before or after sewing
    • D05D2305/08—Cutting the workpiece
    • D—TEXTILES; PAPER
    • D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
    • D10B2503/00—Domestic or personal
    • D10B2503/06—Bed linen
    • D10B2503/062—Fitted bedsheets

Definitions

  • the invention relates to a method for the production of fitted sheets or similar protective covers, in which rectangular pieces of cloth are cut off from a web and stretched elastic bands or the like are sewn on or sewn into the appropriately folded cloth edges, which in the relaxed state cause the cloth to contract cause wrinkles or curls.
  • fitted sheets have been produced from textiles or textile-like materials (so-called non-woven materials) in a predominantly manual working process.
  • the web material is first laid in a stack with a long-laying machine, and this stack is then cut through in the middle, and the corners at the cut edges are finally separated by rectangular or approximately rectangular cutouts on the resulting two stack halves. All other operations for the production of the fitted sheets must then be carried out manually.
  • the blanks are transported to a manual sewing station, at which the adjacent two cut edges in the area of the cut-out cloth corner are placed flush with one another and sewn together. If in this way the four required connecting seams are attached to each piece of cloth, you will - in spatial terms - already get a box-like cloth structure.
  • the elastic bands or similar tensioning elements are then to be attached to these now partially assembled fitted sheets.
  • This is done at another manual sewing station, to which the fitted sheets have to be transported.
  • the elastic bands are usually sewn or sewn on the cloth edges along the two narrow sides of the partially assembled fitted sheet in such a way that they extend a little beyond the respective corner into the long side of the fitted sheet concerned and in in a relaxed state, contract or curl the fabric in the corner area.
  • a disadvantage of this manufacturing method is, above all, the relatively high amount of manual work involved, although it should be noted that the work processes described above rule out automatic, automatic production of the fitted sheets.
  • undesired transport paths for the sewing material are required, for which a relatively large amount of space is also required for intermediate storage.
  • the method according to the invention has the advantages that the application of the markings to the web material and the attaching or sewing in of the tensioning elastic bands in the tensioned state to the edges of the web material or to the pieces of cloth separated therefrom can take place completely automatically, ie automatically in a corresponding device .
  • This eliminates the time-consuming manual work in connection with the elastic straps, which was made even more difficult by the fact that they are to be sewn or sewn on in the tensioned state.
  • To be removed manually are only the diagonal folding at each corner of a piece of cloth, the sewing of these folded cloth sections and their separation, which is problem-free for a skilled seamstress, since it is relatively short seams and separating lengths of goods to be laid flat.
  • the method according to the invention also reduces the transport routes for the sewing material and the space for intermediate storage of the same in comparison to the prior art, since only a manual sewing station is required.
  • a saving in the elastic bands and thus a further increase in the economy of the method according to the invention is achieved in that the elastic bands are sewn on or sewn in at a distance from the corners of a piece of cloth. If the folded cloth sections are then separated with the corners, no or practically no tensioning rubber is lost.
  • the economic viability of the method can be further increased if, according to another embodiment of the invention, the elastic bands for a piece of cloth are sewn or sewn in at a mutual distance from one another on the cloth edges. You can get by without affecting the function of such fitted sheets, namely with relatively short elastic bands on the edges of the sheet opposite both sides of the respective connecting seam.
  • a web material 10 is used as the starting material for the fitted sheets, one of which is shown almost completely at 9 in FIG. 2, which is taken from a supply stack 12 via a deflection roller 11 and others. is pulled off by a drive roller 13 which is driven intermittently by an electric motor 14. 15 designates two so-called dancer rolls, which stretch the web material 10 in the longitudinal direction before it runs over a further drive roller 16 in the direction of the cutting station 18.
  • the drive roller 16 is driven intermittently by an electric motor 17 in synchronism with the drive roller 13.
  • the cutting station 18 comprises a separating knife 19 which can be moved up and down by motor and a stationary counter knife 20.
  • the two knives 19, 20 are preceded by a holding bar 21 which can be moved up and down by a drive means (not shown) and which interacts with a support plate located under the web material 10, to clamp the web material 10 before the cutting knife 19 comes into operation. Even after the separating cut has been made, the web material 10 is still clamped briefly, for reasons that will be described later. Between the drive roller 13 and the deflection roller 11 also extends a support plate below the web material 10.
  • a measuring wheel 22 which is driven when the web material 10 is pulled off from the supply stack 12, is drive-connected to an encoder 23, which, among other things, controls the electric motors via a control circuit 14, 17 controls that a web length, which corresponds to the cutting length of a fitted sheet, is subtracted from the supply stack 12.
  • an encoder 23 which, among other things, controls the electric motors via a control circuit 14, 17 controls that a web length, which corresponds to the cutting length of a fitted sheet, is subtracted from the supply stack 12.
  • two marking devices 24 come into operation, which place four marking points 25, 26 next to each longitudinal edge 27 of the web material 10.
  • these marking points can consist of contrasting colors, including fluorescent colors for optical scanning, metal-containing colors for inductive or capacitive scanning, etc.
  • the marking points 26 are sensed by sensors, not shown, which control a feed device 28 for a tensioning elastic band 31 and the drive motor 29 for a sewing machine 30 with respect to each longitudinal edge 27 of the web material 10 via a control circuit.
  • the marking points 26 switch on the feed devices 28 for the elastic band 31, which is indicated by only schematically indicated guiding and tensioning devices 33 is guided parallel to the longitudinal edges 27 against the web material 10 in the tensioned state, so that it is sewn on the web material 10 parallel to the edges when the sewing machines 30 are reached.
  • the marking points 26 also control the drive of the up and down movable cutting knife 19 via sensors, not shown, such that the separating cut runs between two marking points 25, 26 spaced apart in the longitudinal direction of the web material 10 Separation cut has been made by the knife 19, the separated piece of cloth 34 can be transported transversely to the longitudinal direction of the web material 10 by lower transport belts 35 and upper transport belts 36 and 37 in the direction of the arrow according to FIG. 7 to the left.
  • the bracket 32 is driven on a guide, not shown, by an endless drive member 38 to and fro via the electric motor 39.
  • a lifting device 40 lifts the upper transport belts 36 to such an extent that the clamp 32 can be moved under the transport belts 36 against the cutting station 18 and back.
  • the control of the electric motor 39 for driving the clamp 32 and its gripping movement is carried out by the transmitter 23 via the control circuit already mentioned, in synchronism with the electric motors 14, 17 of the drive rollers 13, 16.
  • the clamp 32 After the web material 10 has been released by the holding strip 21, the clamp 32 is moved back into its starting position shown in FIG. 7, while at the same time the drive rollers 13, 16 are activated in order to pull off a further cutting length of the web product 10 from the supply stack 12. When this cutting length is reached, the motors 14, 17 and 39 are switched off again. After a further piece of cloth 34 has been cut off by the separating knife 19 and this piece of cloth 34 has been removed to the left in the direction of the arrow according to FIG. 7, the clamp 32 is moved again against the cutting station 18 and the process described is repeated. The actuation of the holding bar 21 and the separating knife 19 and the lifting device 40 controls the electrical control circuit already mentioned, which is electrically connected to the transmitter 23.
  • an additional reference number 42 denotes two thread separating devices which cut through the threads emanating from the sewing machines 30 '
  • the upper transport belts 37 are driven by an electric motor 43, namely in synchronism with the lower transport belts 35 and which are driven by an electric motor (not shown) the drive the upper transport belt 36 is carried out by an electric motor 44 which is supported by a frame 45 which can be raised and lowered by the lifting device 40.
  • the motors 43, 44 for the transport belts 37, 36 and the motor (not shown) for the lower transport belts 35 can also be controlled by the transmitter 23 via the electrical control circuit with a corresponding time delay, or by sensors which control the longitudinal edges 27a of the cloth pieces 34 scan in the range of movement of the clamp 32.
  • the elastic bands 31 'and 31 are arranged along the longitudinal edges 27a and transverse edges 41 of a piece of cloth 34 at a mutual distance from one another and also at equal distances from each corner 47 of a piece of cloth 34.
  • the sewn on in the above manner in the tensioned state Tensioning elastic bands 31 'and 31 "in the relaxed state produce the ripples or folds indicated in FIG. 1 on the piece of cloth 34.
  • the above-described sewing of the elastic bands on the longitudinal edges 27 of the web material 10 or on the transverse edges 41 of the pieces of cloth 34 takes place in a state in which the web material 10 or cloth pieces 34 are held in a flat state and are moved in the directions indicated by arrows in FIG. 7.
  • so-called hem bags can also be provided in the area of the feed devices 28, 28 'for the elastic bands 31, which fold over the longitudinal edges 27 of the web material 10 or the transverse edges 41 of the cloth pieces 34, so that the elastic bands can be sewn into these folded cloth edges .
  • a piece of cloth 34 When a piece of cloth 34 has been brought into the left-most delivery position according to FIG. 7 by the lower transport belts 35, it is removed by a seamstress in the direction of the arrow and further processed at a manual sewing station 48.
  • the piece of cloth 34 is first folded diagonally at each corner 47, as is indicated in FIGS. 3 to 5, so that the cloth edges 27a and 41 adjacent to the corner 47 are flush (FIG. 5).
  • a connecting seam 50 is then produced along an imaginary line 49 connecting the marking points 25 and 26, and the folded tissue section 51 with the corner 47 is then cut off laterally along the connecting seam 50 from the tissue piece 34.
  • control of the feed devices 28, 28 'for the rubber bands 31 can be in deviation from Embodiment also take place in such a way that, for example, a continuous elastic band is arranged on the longitudinal edges 27a and / or transverse edges 41 of the cloth pieces 34, which, however, is preferably at the distance described in connection with the embodiment with respect to the adjacent corners 47.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Sewing Machines And Sewing (AREA)

Claims (6)

1. Procédé de fabrication de draps-housses (9) ou de housses de même type, dans lequel on découpe, à partir d'une marchandise (10) en bande, des pièces de drap (34) rectangulaires et dans lequel, à l'état sous tension, on coud, aux bords, ou dans les bords, (27, 41) de la pièce de drap, rabattus de façon appropriée, des rubans (31) de caoutchouc de tension, ou analogues, qui, à l'état détendu, opèrent un resserrement du drap sous forme de plis ou de fronces, procédé caractérisé par les étapes successives suivantes de procédé:
a) application de marquages (25, 26) sur la marchandise (10) en bande pour déterminer les tronçons de fixation pour les rubans (31) de caoutchouc de tension, les lignes de coupe transversales sur la marchandise (10) en bande et la couture de liaison (50) à chaque coin (47), à détacher, d'une pièce de drap (34),
b) fixation par couture des rubans (31) de caoutchouc de tension sur, ou dans, les bords (27) de la marchandise (10) en bande, pendant que celle-ci est maintenue avec sa surface plane,
c) séparation par coupe, des différentes pièces de drap (34) d'avec la marchandise (10) en bande,
d) fixation par couture des rubans (31) de caoutchouc de tension sur, ou dans, les deux bords (41) des pièces de drap (34) qui correspondent aux bords de coupe, pendant que les pièces de drap (34) sont maintenues avec leur surface plane,
e) pliure diagonale à chaque coin (47) d'une pièce de drap (34), de façon telle que les tronçons repliés du drap viennent se superposer, leur surface étant plane, et que les deux bords (27a, 41) du drap voisins de chaque coin viennent affleurer,
f) liaison par couture des tronçons de drap repliés ensemble à chaque coin (47) d'une pièce de drap (34) le long des marquages (25, 26) prévus pour la couture de liaison (50) et
g) séparation des tronçons repliés du drap d'avec les coins (47) du drap, latéralement, le long de chaque couture de liaison (50).
2. Procédé selon la revendication 1, caractérisé en ce que, dans le cas d'une marchandise (10) en bande qui se déplace en direction longitudinale, on mesure des longueurs de bande correspondant à la longueur de coupe pour les différents draps-housses (9); et en ce que l'on arrête le défilement de la marchandise (10) en bande en fonction de cette dimension; et que l'on applique les marquages (25, 26) sur la marchandise (10) en bande pour déterminer les tronçons de fixation pour les rubans (31) de caoutchouc de tension, les lignes de coupe transversales et les coutures de liaison (50).
3. Procédé selon la revendication 1 ou 2, caractérisé en ce que l'on coud les rubans (31) de caoutchouc de tension à une certaine distance des coins (47) d'une pièce de drap (34).
4. Procédé selon la revendication 1, 2 ou 3, caractérisé en ce que l'on coud à une certaine distance mutuelle l'un de l'autre sur, ou dans, les bords (27, 41) du drap les rubans (31) de caoutchouc de tension pour une pièce de drap (34).
5. Procédé selon la revendication 1, caractérisé en ce que l'on coud les rubans (31) de caoutchouc de tension sur les bords, ou dans les bords (27), de la marchandise (10) en bande pendant que la marchandise (10) en bande se déplace en direction longitudinale.
6. Procédé selon la revendication 1, caractérisé en ce que l'on coud les rubans (31) de caoutchouc de tension sur, ou dans, les deux bords (41) des pièces de drap (34) pendant que les pièces de drap (34) se déplacent transversalement par rapport à la direction longitudinale de la marchandise (10) en bande.
EP86115599A 1985-11-30 1986-11-11 Procédé de fabrication de draps-housses ou enveloppes similaires Expired EP0224760B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE3542394A DE3542394C1 (de) 1985-11-30 1985-11-30 Vorrichtung zur Herstellung von teilweise konfektionierten Spannbettuechern oder dergleichen Schonbezuegen
DE3542445 1985-11-30
DE3542445A DE3542445C1 (de) 1985-11-30 1985-11-30 Verfahren zur Herstellung von Spannbettuechern oder dergleichen Schonbezuegen

Publications (2)

Publication Number Publication Date
EP0224760A1 EP0224760A1 (fr) 1987-06-10
EP0224760B1 true EP0224760B1 (fr) 1989-05-24

Family

ID=25838357

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86115599A Expired EP0224760B1 (fr) 1985-11-30 1986-11-11 Procédé de fabrication de draps-housses ou enveloppes similaires

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EP (1) EP0224760B1 (fr)
DE (1) DE3542394C1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3638989C1 (en) * 1986-11-14 1988-02-11 Texpa Arbter Maschb Gmbh Apparatus for making at least one hem on a cloth material having a sewn-in tape, especially rubber tape
US4773341A (en) * 1987-10-21 1988-09-27 Sew Simple Systems, Inc. Fitted sheet hemmer
DE3737369C1 (de) * 1987-11-04 1989-03-09 Texpa Arbter Maschb Gmbh Naehanlage fuer Stoffstuecke
US5133273A (en) * 1991-09-19 1992-07-28 Sew Simple Systems, Inc. Fitted sheet hemmer

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3181179A (en) * 1962-04-03 1965-05-04 Springs Cotton Mills Fitted bed sheet and method for making same
DE1760888A1 (de) * 1968-07-15 1971-12-30 Feldmuehle Ag Verfahren zum kontinuierlichen Fertigen von Decken
FR2284249A7 (fr) * 1974-09-09 1976-04-02 Chapellerie Ste Ind Procede de fabrication d'une enveloppe souple, notamment d'une housse pour matelas et enveloppe obtenue suivant ce procede
US3955515A (en) * 1974-10-07 1976-05-11 Nemo Industries, Inc. Folding and hemming method and apparatus
FR2506590B1 (fr) * 1981-05-27 1986-06-06 Duhamel Sarl Maurice Drap housse
IT1159812B (it) * 1983-01-06 1987-03-04 Bassetti Spa Metodo per la realizzazione di fodere amovibili per rivestire in modo aderente manufatti a dimensione tridimensionale

Also Published As

Publication number Publication date
EP0224760A1 (fr) 1987-06-10
DE3542394C1 (de) 1987-02-26

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